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Acute respiratory distress system

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https://www.readbyqxmd.com/read/28340238/cigarette-smoke-exposure-worsens-endotoxin-induced-lung-injury-and-pulmonary-edema-in-mice
#1
Jeffrey E Gotts, Jason Abbott, Xiaohui Fang, Haru Yanagisawa, Naoki Takasaka, Stephen L Nishimura, Carolyn S Calfee, Michael A Matthay
Introduction: Cigarette smoking (CS) remains a major public health concern and has recently been associated with an increased risk of developing acute respiratory distress syndrome (ARDS). Bronchoalveolar lavage (BAL) experiments in human volunteers have demonstrated that active smokers develop increased alveolar-epithelial barrier permeability to protein after inhaling lipopolysaccharide (LPS). Here we tested the hypothesis that short-term whole-body CS exposure would increase LPS-induced lung edema in mice...
March 9, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28331290/effects-of-dexamethasone-coadministered-with-oseltamivir-on-the-pharmacokinetics-of-oseltamivir-in-healthy-volunteers
#2
Kyungho Jang, Min-Kyoung Kim, Jaeseong Oh, SeungHwan Lee, Joo-Youn Cho, Kyung-Sang Yu, Tai Kiu Choi, Sang-Hyuk Lee, Kyoung Soo Lim
PURPOSE: Oseltamivir is widely used in the treatment and prophylaxis of influenza A and B viral infections. It is ingested as an oral prodrug that is rapidly metabolized by carboxylesterase 1 (CES1) to its active form, oseltamivir carboxylate. Dexamethasone is also used in the treatment of acute respiratory distress syndrome, a severe complication of influenza; however, its influence on the pharmacokinetics (PK) of oseltamivir is controversial. The aim of this study was to investigate the effects of coadministering oseltamivir and dexamethasone on the PK of oseltamivir in healthy volunteers...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28301417/inhaled-sedation-in-patients-with-acute-respiratory-distress-syndrome-undergoing-extracorporeal-membrane-oxygenation
#3
Andreas Meiser, Hagen Bomberg, Philipp M Lepper, Franziska C Trudzinski, Thomas Volk, Heinrich V Groesdonk
Six patients suffering from acute respiratory distress syndrome with the need for extracorporeal membrane oxygenation (ECMO) therapy in deep sedation were included. Isoflurane sedation with the AnaConDa system was initiated within 24 hours after initiation of ECMO therapy and resulted in a satisfactory sedation (Richmond Agitation-Sedation Scale -4 to -5). Despite deep sedation, spontaneous breathing was possible in 6 of 6 patients. We observed a reduced need for vasopressor therapy and improved lung function (PaO2, PaCO2, delta P, and tidal volume) during isoflurane sedation...
March 15, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28287530/open-tracheostomy-gastric-acid-aspiration-murine-model-of-acute-lung-injury-results-in-maximal-acute-nonlethal-lung-injury
#4
Ravi Alluri, Hilliard L Kutscher, Barbara A Mullan, Bruce A Davidson, Paul R Knight
Acid pneumonitis is a major cause of sterile acute lung injury (ALI) in humans. Acid pneumonitis spans the clinical spectrum from asymptomatic to acute respiratory distress syndrome (ARDS), characterized by neutrophilic alveolitis, and injury to both alveolar epithelium and vascular endothelium. Clinically, ARDS is defined by acute onset of hypoxemia, bilateral patchy pulmonary infiltrates and non-cardiogenic pulmonary edema. Human studies have provided us with valuable information about the physiological and inflammatory changes in the lung caused by ARDS, which has led to various hypotheses about the underling mechanisms...
February 26, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28281441/miliary-tuberculosis
#5
Surendra K Sharma, Alladi Mohan
Miliary tuberculosis (TB) results from a massive lymphohematogenous dissemination of Mycobacterium tuberculosis bacilli and is characterized by tiny tubercles evident on gross pathology resembling millet seeds in size and appearance. The global HIV/AIDS pandemic and widespread use of immunosuppressive drugs and biologicals have altered the epidemiology of miliary TB. Considered to be predominantly a disease of infants and children in the pre-antibiotic era, miliary TB is increasingly being encountered in adults as well...
March 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28273989/healthcare-associated-infections-in-a-resource-limited-setting
#6
Chanaveerappa Bammigatti, Saikumar Doradla, Harish Narasimha Belgode, Harichandra Kumar, Rathinam Palamalai Swaminathan
INTRODUCTION: Health Care associated Infections (HAI) are the most common complications affecting the hospitalized patients. HAI are more common in developing and under developed countries. However, there are no systematic surveillance programs in these countries. AIM: To find out the burden, predisposing factors and multidrug resistant organisms causing HAI in a resource limited setting. MATERIALS AND METHODS: This prospective observational study was done at Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER)...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28269224/importance-of-metabolism-variations-in-a-model-of-extracorporeal-carbon-dioxide-removal
#7
S Habran, T Desaive, Ph Morimont, B Lambermont, P C Dauby
Extracorporeal CO2 Removal device is used in clinics when a patient suffers from a pulmonary insufficiency like Acute Respiratory Distress Syndrome and allows to decarboxylate blood externally. In this work, a model of the respiratory system coupled with such a device is proposed to analyze the decrease of CO2 partial pressure in blood. To validate the model, some parameters are estimated thanks to experimental data. Metabolism is a crucial parameter and we show that its time evolution must be taken into account in order to have correct CO2 partial pressure simulations in arteries and in veins...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28243236/inhibition-of-tnf-receptor-p55-by-a-domain-antibody-attenuates-the-initial-phase-of-acid-induced-lung-injury-in-mice
#8
Michael R Wilson, Kenji Wakabayashi, Szabolcs Bertok, Charlotte M Oakley, Brijesh V Patel, Kieran P O'Dea, Joanna C Cordy, Peter J Morley, Andrew I Bayliffe, Masao Takata
BACKGROUND: Tumor necrosis factor-α (TNF) is strongly implicated in the development of acute respiratory distress syndrome (ARDS), but its potential as a therapeutic target has been hampered by its complex biology. TNF signals through two receptors, p55 and p75, which play differential roles in pulmonary edema formation during ARDS. We have recently shown that inhibition of p55 by a novel domain antibody (dAb™) attenuated ventilator-induced lung injury. In the current study, we explored the efficacy of this antibody in mouse models of acid-induced lung injury to investigate the longer consequences of treatment...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28237630/-18-f-fluoro-2-deoxyglucose-pet-informs-neutrophil-accumulation-and-activation-in-lipopolysaccharide-induced-acute-lung-injury
#9
Rosana S Rodrigues, Fernando A Bozza, Christopher J Hanrahan, Li-Ming Wang, Qi Wu, John M Hoffman, Guy A Zimmerman, Kathryn A Morton
INTRODUCTION: Molecular imaging of the earliest events related to the development of acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) could facilitate therapeutic development and patient management. We previously reported that (18)F-fluoro-2-deoxyglucose ((18)F-FDG) PET identifies ALI/ARDS prior to radiographic abnormalities. The purpose of this study was to establish the time courses of (18)F-FDG uptake, edema and neutrophil recruitment in an endotoxin-induced acute lung injury model and to examine molecular events required for (14)C-2DG uptake in activated neutrophils...
January 17, 2017: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/28227454/importance-of-metabolism-variations-in-a-model-of-extracorporeal-carbon-dioxide-removal
#10
S Habran, Th Desaive, Ph Morimont, B Lambermont, P C Dauby, S Habran, T Desaive, Ph Morimont, B Lambermont, P C Dauby, S Habran, Th Desaive, B Lambermont, P C Dauby, Ph Morimont
Extracorporeal CO2 Removal device is used in clinics when a patient suffers from a pulmonary insufficiency like Acute Respiratory Distress Syndrome and allows to decarboxylate blood externally. In this work, a model of the respiratory system coupled with such a device is proposed to analyze the decrease of CO2 partial pressure in blood. To validate the model, some parameters are estimated thanks to experimental data. Metabolism is a crucial parameter and we show that its time evolution must be taken into account in order to have correct CO2 partial pressure simulations in arteries and in veins...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224110/comparison-of-inhaled-milrinone-nitric-oxide-and-prostacyclin-in-acute-respiratory-distress-syndrome
#11
Martin Albert, Daniel Corsilli, David R Williamson, Marc Brosseau, Patrick Bellemare, Stéphane Delisle, Anne Qn Nguyen, France Varin
AIM: To evaluate the safety and efficacy of inhaled milrinone in acute respiratory distress syndrome (ARDS). METHODS: Open-label prospective cross-over pilot study where fifteen adult patients with hypoxemic failure meeting standard ARDS criteria and monitored with a pulmonary artery catheter were recruited in an academic 24-bed medico-surgical intensive care unit. Random sequential administration of iNO (20 ppm) or nebulized epoprostenol (10 μg/mL) was done in all patients...
February 4, 2017: World Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28217046/effect-of-nebulized-budesonide-on-respiratory-mechanics-and-oxygenation-in-acute-lung-injury-acute-respiratory-distress-syndrome-randomized-controlled-study
#12
Hatem Saber Mohamed, Mona Mohamed Abdel Meguid
BACKGROUND: We tested the hypothesis that nebulized budesonide would improve lung mechanics and oxygenation in patients with early acute lung injury (ALI) and/or acute respiratory distress syndrome (ARDS) during protective mechanical ventilation strategy without adversely affecting systemic hemodynamics. METHODS: Patients with ALI/ARDS were included and assigned into two groups; budesonide group (30 cases) in whom 1 mg-2 ml budesonide suspension was nebulized through the endotracheal tube and control group (30 cases) in whom 2 ml saline (placebo) were nebulized instead of budesonide...
January 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28208675/pneumonia-acute-respiratory-distress-syndrome-and-early-immune-modulator-therapy
#13
REVIEW
Kyung-Yil Lee
Acute respiratory distress syndrome (ARDS) is caused by infectious insults, such as pneumonia from various pathogens or related to other noninfectious events. Clinical and histopathologic characteristics are similar across severely affected patients, suggesting that a common mode of immune reaction may be involved in the immunopathogenesis of ARDS. There may be etiologic substances that have an affinity for respiratory cells and induce lung cell injury in cases of ARDS. These substances originate not only from pathogens, but also from injured host cells...
February 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28195073/effects-of-budesonide-on-the-lung-functions-inflammation-and-apoptosis-in-a-saline-lavage-model-of-acute-lung-injury
#14
D Mokra, P Kosutova, S Balentova, M Adamkov, P Mikolka, J Mokry, M Antosova, A Calkovska
Diffuse alveolar injury, edema, and inflammation are fundamental signs of acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). Whereas the systemic administration of corticosteroids previously led to controversial results, this study evaluated if corticosteroids given intratracheally may improve lung functions and reduce edema formation, migration of cells into the lung and their activation in experimentally-induced ALI. In oxygen-ventilated rabbits, ALI was induced by repetitive saline lung lavage, until PaO2 decreased to < 26...
December 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28193088/scrotal-abscess-a-rare-presentation-of-complicated-necrotizing-pancreatitis
#15
Seyyedhadi Mirhashemi, Mohsen Soori, Gholamhossein Faghih, Hassan Peyvandi, Omid Shafagh
Acute pancreatitis is characterized by activation of digestive enzymes inside the pancreas. In severe pancreatitis, necrosis of pancreas and surrounding tissues may occur. Acute necrotizing pancreatitis commonly presents as pancreatic abscess occasionally with systemic complications. Rarely, necrotic tissue may be drained from scrotum due to retroperitoneal extension of necrotic process. Here, we report a case of acute necrotizing pancreatitis in a 29-year-old man who presented with severe abdominal pain, nausea and vomiting...
February 2017: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/28187807/neuropulmonology
#16
REVIEW
A Balofsky, J George, P Papadakos
Neuropulmonology refers to the complex interconnection between the central nervous system and the respiratory system. Neurologic injury includes traumatic brain injury, hemorrhage, stroke, and seizures, and in each there are far-reaching effects that can result in pulmonary dysfunction. Systemic changes can induce impairment of pulmonary function due to changes in the core structure and function of the lung. The conditions and disorders that often occur in these patients include aspiration pneumonia, neurogenic pulmonary edema, and acute respiratory distress syndrome, but also several abnormal respiratory patterns and sleep-disordered breathing...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28181563/the-antimicrobial-molecule-trappin-2-elafin-has-anti-parasitic-properties-and-is-protective-in-vivo-in-a-murine-model-of-cerebral-malaria
#17
Christian Roussilhon, Gilles Bang, Fabien Bastaert, Brigitte Solhonne, Ignacio Garcia-Verdugo, Roger Peronet, Pierre Druilhe, Anavaj Sakuntabhai, Salaheddine Mecheri, Jean-Michel Sallenave
According to the WHO, and despite reduction in mortality rates, there were an estimated 438 000 malaria deaths in 2015. Therefore new antimalarials capable of limiting organ damage are still required. We show that systemic and lung adenovirus (Ad)-mediated over-expression of trappin-2 (T-2) an antibacterial molecule with anti-inflammatory activity, increased mice survival following infection with the cerebral malaria-inducing Plasmodium berghei ANKA (PbANKA) strain. Systemically, T-2 reduced PbANKA sequestration in spleen, lung, liver and brain, associated with a decrease in pro-inflammatory cytokines (eg TNF-α in spleen and lung) and an increase in IL-10 production in the lung...
February 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28180097/interhospital-transport-system-for-critically-ill-patients-mobile-extracorporeal-membrane-oxygenation-without-a-ventilator
#18
Hye Ju Yeo, Woo Hyun Cho, Jong Myung Park, Dohyung Kim
BACKGROUND: Extracorporeal membrane oxygenation (ECMO) has been successfully used as a method for the interhospital transportation of critically ill patients. In South Korea, a well-established ECMO interhospital transport system is lacking due to limited resources. We developed a simplified ECMO transport system without mechanical ventilation for use by public emergency medical services. METHODS: Eighteen patients utilized our ECMO transport system from December 2011 to September 2015...
February 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28178996/hemodynamic-effects-of-lung-recruitment-maneuvers-in-acute-respiratory-distress-syndrome
#19
Anup Das, Mainul Haque, Marc Chikhani, Oana Cole, Wenfei Wang, Jonathan G Hardman, Declan G Bates
BACKGROUND: Clinical trials have, so far, failed to establish clear beneficial outcomes of recruitment maneuvers (RMs) on patient mortality in acute respiratory distress syndrome (ARDS), and the effects of RMs on the cardiovascular system remain poorly understood. METHODS: A computational model with highly integrated pulmonary and cardiovascular systems was configured to replicate static and dynamic cardio-pulmonary data from clinical trials. Recruitment maneuvers (RMs) were executed in 23 individual in-silico patients with varying levels of ARDS severity and initial cardiac output...
February 8, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28159013/the-effects-of-low-tidal-ventilation-on-lung-strain-correlate-with-respiratory-system-compliance
#20
Jianfeng Xie, Fang Jin, Chun Pan, Songqiao Liu, Ling Liu, Jingyuan Xu, Yi Yang, Haibo Qiu
BACKGROUND: The effect of alterations in tidal volume on mortality of acute respiratory distress syndrome (ARDS) is determined by respiratory system compliance. We aimed to investigate the effects of different tidal volumes on lung strain in ARDS patients who had various levels of respiratory system compliance. METHODS: Nineteen patients were divided into high (Chigh group) and low (Clow group) respiratory system compliance groups based on their respiratory system compliance values...
February 3, 2017: Critical Care: the Official Journal of the Critical Care Forum
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